Nurse!

Lisa Vanderpump's hubby, Ken Todd, says the 'RHOBH' star will likely never ride a horse again ... after her last ride ended with a badly broken leg.

We caught up with Ken on Tuesday, just as Lisa was having surgery to repair the shattered bones. Ken confirms she broke her leg in 3 places, and will have a bunch of new hardware by the time you're reading this.

He says he's not completely sure how long it will take Lisa to fully recover, but he's guessing about 8-10 weeks.

One thing at least he's sure of ... LV's riding days are over. Ken says the horse she was riding Sunday was a gentle and amazing animal, and despite the ol' saying, it doesn't sound like he wants his wife to risk it by getting back on the horse. Of course, we'll have to see what Lisa thinks once she's recovered.

As we've previously reported, the 'Real House Wives' star was riding in L.A. when her steed apparently got scared, reared up and bucked her off.

Ken saw it happen, and was in complete shock -- he says Lisa immediately knew something was broken.

Simon Cowell did it again ... he crashed his e-bike and landed in the hospital with broken bones.

Sources tell TMZ ... Simon was tooling around on the bike in London last Thursday when he turned a sharp corner ... or at least he tried to turn. The road was wet and the tires went out from under him and he crashed to the ground.

We're told Simon broke his left arm and badly bruised his cheek. He may have also have suffered a concussion.

Simon went to the hospital where he was treated and released the same day, sporting a bright yellow cast.

As we reported, this was not Simon's first crash ... in August, 2020, he got a brand-spankin' new e-bike and literally got on it in his driveway and it lunged forward, crashing and as a result, Simon broke his back in 3 places.

Now, if Simon happens to read this ... wear a helmet, dude!!! He wasn't wearing one in either crash, and but for the grace of God, he could have suffered way more severe injuries.

The 2022 Olympics haven't begun yet, but they're already off to a not-so-hot start for USA skier Kai Owens, who sustained a gnarly eye injury during preparation for the Beijing event on Tuesday.

The 17-year-old Owens was practicing for the Winter Olympics at Genting Snow Park in China ... when photographers captured her falling on the slopes.

Kai needed medical care from personnel on hand ... but, fortunately, she was able to stand up on her own. Photos from the scene, though, showed she did suffer a black eye in the fall.

Thankfully, it does not appear she sustained any further serious injuries.

It's not exactly the start Owens was hoping for ... remember, she told us out at LAX just a few days ago that she was pumped for the Games, particularly considering the location of it all.

Owens was abandoned by her birth parents in China as an infant and was adopted by a Colorado couple when she was 1 year old.

Lisa Venderpump got thrown for a loop on the horse she was riding ... and she ended up in the hospital with broken bones.

'The Real Housewives' star was riding her horse Sunday at The Paddock in the Los Feliz part of L.A., when the equine apparently got spooked, reared up and bucked her off. An eyewitness tells us she flew over the horse's head and landed squarely on her back.

Lisa was in a lot of pain, and for good reason ... we're told she broke her leg in 2 places, just above the ankle. She also has bruising on her back.

She was taken to the hospital by ambulance. Hubby Ken Todd followed behind and he's with her at the hospital now. We're told she'll undergo surgery. Our Vanderpump sources say once she's all healed, she'll be fine.

The horse is no stranger to Lisa ... they've been together for 6 years. Some friend!!!

Dr. Oz drew on his medical background for a medical emergency at a political meeting ... jumping in to help a man who fell unconscious.

Sources close to the situation tell TMZ ... Oz was next in line to speak at Saturday morning's Pennsylvania Republican Caucus Meeting outside Pittsburgh when suddenly a state committee member collapsed.

We're told Dr. Oz rushed over and quickly lowered the man to the ground ... tending to him while he appeared to suffer a seizure and lost consciousness.

Our sources say Oz also helped move the man to a flat surface outside the meeting room, where another seizure-like episode occurred.

We're told EMS eventually arrived and transported the man to a local hospital, and the guy was conscious and conversing with Oz as EMS took him away.

Our sources say Dr. Oz went on stage for his scheduled remarks after the incident ... and following the caucus, he got in touch with the man and learned he's in stable condition at a hospital.

As you know ... Dr. Oz is running for a U.S. Senate seat in Pennsylvania, switching gears to politics after a successful career as a TV doctor.

Dr. Oz tells TMZ ... "I am a doctor first and always will be, so I responded immediately to a call for help when a nearby man collapsed. Following the lessons learned from a life in medicine, I did my job until EMS arrived to transport him to a nearby hospital."

NHL star Nathan MacKinnon suffered both a broken face and a concussion from the violent hit that left him a bloody mess on Wednesday night.

Avalanche head coach Jared Bednar just announced the update to media members ... saying he's not sure when the Colorado center will be able to return to game action.

Bednar did say, though, that he expected MacKinnon to miss at least the team's next 3 games.

If you missed it ... the hit was scary as hell -- as MacKinnon was going up the ice in the Avs' game against the Bruins, Taylor Hall's shoulder collided with his face.

Video of the play shows MacKinnon's stick ended up wacking him in the nose ... 'causing him to bleed everywhere.

Somehow, MacKinnon got up and skated off the ice under his own power.

Colorado will miss the star while he's out ... he's been one of the best players in the league this season, tallying nine goals and 34 assists in 31 games.

Motorsports legend Travis Pastrana says he broke his back and hip in his horrifying parachute crash last weekend ... but somehow, he said he's expected to make a full recovery.

The X Games gold medalist and daredevil posted a video update from his hospital bed Thursday ... explaining his failed base jump attempt off a high-rise hotel in Ft. Lauderdale, Fla. last Saturday resulted in some serious injuries.

The 38-year-old said he broke the L5 vertebra in his back and suffered "multiple hip fractures" and a "pinned sacrum."

Fortunately, Travis said he's already up and moving around following the surgery ... adding, "Doctors say it's not going to be really any worse than what it is when I went in, which isn't saying much. Everything was fused down there anyway."

Pastrana went on to thank his sponsors, his fans and his family following the near-tragedy.

As we previously reported, Pastrana hit the ground hard after he appeared to deploy his parachute just a little too late after leaping off a building on Saturday morning.

He was rushed to the hospital in "serious but stable condition," authorities said.

Scary moment on the NHL ice on Wednesday ... Nathan MacKinnon -- one of the league's best players -- gushed blood everywhere following a violent hit, and had to leave his game early.

The gnarly scene all went down just minutes into the Avalanche's tilt with the Bruins in Denver ... when MacKinnon was trucked by Boston winger Taylor Hall as he tried to get after a puck.

Video shows Hall's shoulder went right into MacKinnon's face, and, unfortunately for the Avs star, his own stick caught him in the nose during the play as well.

The 26-year-old lay on the ice for several minutes ... bleeding all over the place, before he was eventually helped off by trainers into the locker room.

MacKinnon never returned to the game, and it's unclear the extent of his injuries. The Avs only said that he had an "upper-body" ailment.

Seems pretty clear from the images, though, that the guy might need to get his face fixed soon.

Scary moment at the Australian Open -- tennis star Nick Kyrgios smacked a loose ball out of frustration during a doubles match ... and it ended up nailing a young fan in the crowd.

Fortunately, the kid appeared to be OK after Kyrgios apologized with a gift racket.

The wild play all went down Monday during Kyrgios' doubles event with partner Thanasi Kokkinakis ... when Kyrgios got pissed over a missed serve.

You can see in footage from the Open, Kyrgios rifled a ball into the ground, and it ended up ricocheting straight into the stands and right into a kid's stomach.

The boy was so visibly hurt and upset ... Kyrgios himself was shaken up on the court.

Nick, though, collected himself and immediately grabbed one of his spare rackets to make up for the major blunder. And, it seemed the child was going to be just fine after the present.

"I saw it heading towards the kid and I thought, "Oh, no, I am getting defaulted," Kyrgios said of the scene to Channel Nine after the match. "I was glad he was OK and I gave him the racket."

This isn't the first time Kyrgios has made headlines at this month's tourney -- just last week, the 26-year-old took a swig of a fan's beer after defeating his opponent.

The fans in attendance loved it ... but the gesture didn't come without controversy, as some wondered if event organizers would come down hard on the Aussie ... given the COVID drama that went down with Novak Djokovic in the buildup to the tourney.

But, Nick has yet to face any discipline for the not-so-safe action.

One of the people involved in Arnold Schwarzenegger's multi-car wreck couldn't believe her eyes ... not only because of the movie stunt-like crash, but because she's a huge fan of his.

Habiba Muminova was one of the drivers who had a close encounter with Arnold's SUV in Friday's crash, and she tells TMZ ... she felt like she was "hallucinating" when Arnold exited his Yukon.

Habiba says Arnold's one of her favorite actors, and while she says, "God bless him," ... she's painfully aware this wasn't exactly a great way to meet him for the first time. Still, she says she's telling everyone what -- and who -- happened.

Habiba says she was just doing her job Friday -- driving patients to doctor's appointments -- when all of a sudden she was smack in the middle of an accident involving a movie star/former governor.

She says she was waiting at a red light to turn on Sunset Blvd when Arnold's SUV collided with a red Prius ... and before she knew it one of Arnold's back tires was smacking into her car, causing a harsh jolt.

Habiba says the initial impact was so strong, she thought she broke her spine.

With Arnold's SUV blocking her door, Habiba says she climbed out through the passenger side, where she was met by first responders and advised to get a ride to the hospital. Instead, she stayed put on the scene with the patient she'd been transporting.

She says she's now experiencing pain in her spine and back, from the shoulder down her left side and she's getting checked out by a doctor this week.

Habiba's concerned about her job moving forward -- she says her car is badly damaged, which will make it difficult, if not impossible, to drive patients around town.

She says she's reached out to an attorney for legal advice.

Motorsports legend Travis Pastrana has been hospitalized in Florida ... after he terrifyingly crash-landed into a park following a parachute stunt gone wrong.

The horrifying scene was all captured on video ... showing Pastrana is truly fortunate to be alive today.

In the footage, you can see the 38-year-old jumped from the top of a high-rise hotel ... and appeared to deploy his 'chute just a little too late, causing him to hit the ground with force.

Thankfully, his publicist told WSVN-TV's Frank Guzman he is expected to make a full recovery.

"Surgery went well and he is excited to get home and heal up," the publicist said.

Ft. Lauderdale Fire Chief Stephen Gollan tells TMZ Sports the incident happened on Saturday morning, when a video crew was shooting in the area of Las Olas Blvd. and Andrews Ave.

"A stunt during that event did not go as planned resulting in a hard landing of a parachutist that jumped from the Hyatt Hotel," Gollan said in a statement.

"The adult male was immediately treated and transported in serious but stable condition to Broward Health."

According to Keys Weekly, the X Games gold medalist has been in Florida this month doing stunts and drifts. In fact, just a few days before the parachute incident, Pastrana was in the Florida Keys filming with a 1983 Subaru GL Wagon.

Scary moment for Olympic gold medalist Sofia Goggia ... the alpine skier banged her head and busted her leg during a violent crash at the World Cup on Sunday -- just weeks before she's supposed to defend her title at the winter games in Beijing.

Luckily for Goggia, the injuries aren't catastrophic.

The frightening incident was caught on video ... showing the 29-year-old going full speed downhill at the Cortina d'Ampezzo Super-G event.

Everything appeared normal until the Italian skier lost control on a turn ... sending Goggia flying through the air.

Goggia -- who was wearing a helmet -- eventually landed and slid headfirst down the mountain before finally coming to a complete stop.

It looked very bad ... but thankfully, the Italian Ski Federation announced she suffered a left knee strain, a partial tear in her cruciate ligament and a small fibula fracture.

Goggia's rehabilitation will start on Monday as she's determined to defend her downhill gold medal title at the 2022 Winter Olympics in Beijing ... which happens on Feb. 15.

"It's a shame that this injury comes in a very important moment of the season," Goggia said, "but in the next few hours I'll start the physio treatment so I can try to defend my title in the discipline I love the most."

Conor McGregor's return to the Octagon likely isn't that far away ... according to UFC President Dana White, who tells TMZ Sports he expects the Irish superstar to fight this summer.

We recently asked White ... do you believe Conor will fight this year after healing up from the devastating injury.

"I think so, yeah," Dana told us. "He's doing all the right things with his leg. I'm hoping he can come back this summer."

Of course, 33-year-old McGregor hasn't stepped foot competitively in the cage since snapping his leg against Dustin Poirier in July 2021.

Injury aside, The Notorious -- a former UFC double champion -- has lost 3 of his last 4 fights ... including the last 2 to The Diamond.

Conor is currently ranked 9th in the UFC's Lightweight division ... behind fighters like champ Charles Oliveira, Justin Gaethje, Poirier, Michael Chandler, and Tony Ferguson, to name a few.

We also talked to the UFC honcho about the barn-burner of a scrap between Calvin Kattar and Giga Chikadze ... a fight the #5 ranked striker from Boston won by unanimous decision.

So, what's next for Kattar? Dana doesn't know just yet, but makes it clear Calvin is in a prime position.

Arnold Schwarzenegger was just involved in a bad car accident  ... so bad his monster SUV rolled over on top of another car, and that driver was badly injured.

Arnold was driving a Yukon SUV when it collided with a red Prius at around 5:00 PM PT.  His SUV started to roll and ended up on top of the Prius, then continued rolling to the left into a Porsche Taycan.

One eyewitness says it was crazy ... it looked like a stunt in a movie. The collision was intense enough that the airbags deployed on the Yukon.

The woman who was driving the Prius was injured -- bleeding heavily from her head. We're told an ambulance took her to the hospital.

Arnold, we're told, is OK and is deeply concerned about the injured woman. An Arnold source tells TMZ he wants to personally check up on her.

Jake Steinfeld of "Body By Jake" fame was apparently at the scene at the time of the crash and that's him in the photo (above) with Arnold. The two are close friends. In fact, when Arnold was Governor of California, Jake was the Chairman of the Governor's Council on Physical Fitness.

One of the witnesses says it appeared the Prius was on Sunset Blvd and Arnold was on Sunset turning left in the opposite direction when the collision occurred.

At the time of this post, Arnold is still at the accident scene, which is about a mile from his home.

Baker Mayfield finally had surgery on his injured shoulder Wednesday ... and he said it went so well, he's hoping this is a step toward getting back to his "true self."

The Cleveland Browns QB initially injured the shoulder in September while trying to make a tackle following an interception ... and he never seemed to be quite right afterward.

He struggled all year long ... throwing 13 INTs to just 17 TDs, and the Browns ended up missing the playoffs.

But, Baker said just hours after surgery wrapped that he's confident he can now get back to his pre-injury level -- even though the rehab road promises to be grueling.

"It's not going to be an easy one," Mayfield said, "but it's going to be one I'm going to remember, and it's going to be a special one."

Baker added, "This is not the end of my story."

Abby Lee Miller endured a painful nightmare when a hotel door fell over on her, crushing her for nearly a dozen minutes ... according to the lawsuit she just filed.

The "Dance Moms" maven says she was staying at the Hampton Inn & Suites in Santa Monica back in August 2020 when she wheeled herself into the bathroom of her room. Remember, Abby's been in a wheelchair since 2018 due to her lymphoma battle.

In docs obtained by TMZ, Abby says she was leaving the bathroom when her back left wheel got caught under the sliding bathroom door -- and when she attempted to free herself, the more than 300-pound door came crashing down. She says she was pinned in her wheelchair and trapped in the doorway for 6 to 12 minutes.

According to the suit, Abby screamed for help until 2 hotel staffers came to lift the door off of her. She was taken by ambulance to a nearby hospital, and Abby says she's still going through physical therapy for the injuries she suffered to her head and shoulder.

The alleged falling door would've been more than enough trauma, but in the docs, Abby says she endured other hardships during an extended stay from March to October 2020. For instance, she claims the laundry room was not accessible to wheelchairs, her hallway was often blocked by housekeeping carts ... and she was unable to open doors to the pool or gym areas, presumably due to her disability.

Abby is suing the hotel's parent corporation for negligence, emotional distress, discrimination and false imprisonment ... and she's seeking compensation of at least $8.5 million.